US2988455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysaccharide composition and method of manufacture
Assignee: AMF Inc
•
Filing: 1958-03-06
•
Granted: 1961-06-13
•
Expires: 1978-03-06
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Sheldon
- 👤 Bandel David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:26
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/003; C08B31/006; C08B11/00; C08B11/02; C08B15/00; C08B15/005; C08B15/10; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF MAKING A POLYSACCHARIDE COMPOSITION OF MATTER COMPRISING IN COMBINATION THE STEPS OF DISSOLVING A DIALDEHYDE POLYSACCHARIDE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF STARCHES, CELLULOSE, GALACTOMANNANS AND DEXTRANS IN A BUFFERED AQUEOUS SALT SOLUTION TO FORM A CROSS-LINKING SOLUTION, DISOLVING A POLYSACCHARIDE IN WATER TO FORM A POLYSACCHARIDE SOLUTION, MIXING SAID CROSS-LINKING SOLUTION WITH SAID POLYSACCHARIDE SOLUTION TO FORM A MIXED SOLUTION AND DRYING SAID MIXED SOLUTION TO FORM A POLYSACCHARIDE COMPOSITION OF MATTER.
Claim 2
Independent Claim
80 words
A METHOD OF MAKING A POLYSACCHARIDE COMPOSITION OF MATTER COMPRISING IN COMBINATION THE STEPS OF DISSOLVING A DIALDEHYDE POLYSACCHARIDE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF STARCHES, CELLULOSE, GALACTOMANNANS AND DEXTRANS IN A BUFFERED AQUEOUS SALT SOLUTION TO FORM A CROSS-LINKING SOLUTION, DISOLVING A POLYSACCHARIDE IN WATER TO FORM A POLYSACCHARIDE SOLUTION, MIXING SAID CROSS-LINKING SOLUTION WITH SAID POLYSACCHARIDE SOLUTION TO FORM A MIXED SOLUTION AND DRYING SAID MIXED SOLUTION TO FORM A POLYSACCHARIDE COMPOSITION OF MATTER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |